Preventing rusting by using sacrificial protection
1 mark · EasyState one example of a structure that is protected from rusting using sacrificial anodes.
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Oil pipeline (underground), ship hull, or similar large structure
Also accept: Underground pipeline; Ship; Ship hull; Oil platform; Steel boat; Large metal tank
Common mistakes: Car body; Plastic pipe
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Marking points
B1 · 1 mark · Any valid example of a structure protected using sacrificial anodes, such as a ship or an underground pipe.
Worked solution
An example is an underground oil pipeline, which is often protected from rusting by attaching sacrificial anodes.